Software development on microcontrollers can be a real challenge at times. Sometimes the code just doesn't function as planned, but you can't really figure out why. In such cases, it is time to approach the challenge like Columbo, Jessica Fletcher, or (insert your super sleuth here), do some investigative research, and find out who the culprit is! And for that, you may need to lay a trap using dead beef (0xDEADBEEF).